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Finding the Third Proportional to 213,090.75 and 355,104

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Solution

The third proportional to 213,090.75 and 355,104 is: 591,761.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,090.75 : 355,104 = 355,104 : x
  2. Step 2: Convert to fraction form
    213,090.75/355,104 = 355,104/x
  3. Step 3: Cross multiply
    213,090.75x = 355,104 × 355,104
  4. Step 4: Simplify right side
    213,090.75x = 126,098,850,816
  5. Step 5: Solve for x
    x = 126,098,850,816/213,090.75
  6. Step 6: Final answer
    x = 591,761.26

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.